Cable shielding reduces unwanted electromagnetic coupling, but its performance depends on cable construction, connections and frequency. It is not absolute isolation.
How it works in practice
High-dynamic-range measurements can be limited by leakage between adjacent source and receiver paths. Use suitable shielded assemblies, secure connections and layout separation. Avoid inferring shielding effectiveness from jacket appearance. Test the complete setup when isolation matters.
Example and interpretation
A tiny bypass leakage signal can dominate a measurement after 80 dB of intended attenuation.
Checks before use
- Specify shielding needs
- Separate sensitive paths
- Inspect shield connections
- Measure setup isolation
Important limit
Do not equate a coaxial cable with unlimited shielding.
Related Centron RF product
N-type fixed attenuator for a compatible RF path. Use a product page to check both connector interfaces, nominal impedance and model-specific band and power requirements. The connector family alone cannot establish a component’s total RF capability.
Further reading
Rohde & Schwarz: Impedance, VSWR and Return Loss. This background reference explains general principles; the selected Centron RF model’s datasheet governs its own ratings.
Related guides
Educational guide. Numerical examples use the stated assumptions and are not test results for a supplied unit.